CN106764152A - A kind of elbow bend steel pipe is seamlessly connected mechanism and method - Google Patents
A kind of elbow bend steel pipe is seamlessly connected mechanism and method Download PDFInfo
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- CN106764152A CN106764152A CN201611204837.3A CN201611204837A CN106764152A CN 106764152 A CN106764152 A CN 106764152A CN 201611204837 A CN201611204837 A CN 201611204837A CN 106764152 A CN106764152 A CN 106764152A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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Abstract
本发明公开了一种直角弯头钢制管无缝连接机构及方法，用于将钢管一、钢管二以及直角弯头的无缝连接，钢管一的下端与直角弯头的上端连接，钢管二的左端与直角弯头的下端连接，所述机构包括法兰一、活动法兰一、O型圈一、连接法兰一、连接螺栓一、法兰二、活动法兰二、O型圈二、连接法兰二、连接螺栓二。本机构能很好的清除管道间的间隙，使得连接处的过渡跟整根钢管无异，最大限度的保证管内的平整度，适合对管路要求较高的场合应用。
The invention discloses a seamless connection mechanism and method for right-angle elbow steel pipes, which are used for seamlessly connecting the first steel pipe, the second steel pipe and the right-angle elbow, the lower end of the first steel pipe is connected to the upper end of the right-angle elbow, and the second steel pipe The left end of the left end is connected with the lower end of the right-angle elbow. The mechanism includes flange 1, movable flange 1, O-ring 1, connecting flange 1, connecting bolt 1, flange 2, movable flange 2, and O-ring 2 , connecting flange two, connecting bolt two. This mechanism can well clear the gap between the pipes, so that the transition of the joint is no different from that of the whole steel pipe, ensuring the flatness of the pipe to the maximum extent, and is suitable for applications with high requirements on the pipe.
Description
技术领域technical field
本发明涉及一种直角弯头钢制管无缝连接机构及方法。The invention relates to a seamless connection mechanism and method for right-angle elbow steel pipes.
背景技术Background technique
目前，钢制管连接多用法兰、螺栓和密封垫等连接，其中法兰与钢制管焊接，两侧法兰中间加密封垫，实现钢制管的连接。这种连接方式使得钢管之间存在间隙，用封闭的钢制管管道研究颗粒输送实验时，此间隙会造成两种不利因素：1、储存颗粒物，使得管内颗粒体积浓度减少，实验条件不固定，影响实验结果；2、固液两相以一定的速度流经此间隙，由于突然的高度差，流态发生紊乱，造成固液两相流不稳定，影响管路阻力测量等。所以，传统的连接方式是不能满足要求的。At present, flanges, bolts and gaskets are often used for steel pipe connections. The flanges are welded to the steel pipes, and gaskets are added between the flanges on both sides to realize the connection of steel pipes. This connection method causes a gap between the steel pipes. When using a closed steel pipe to study particle transport experiments, this gap will cause two unfavorable factors: 1. The storage of particles reduces the particle volume concentration in the tube, and the experimental conditions are not fixed. Affect the experimental results; 2. The solid-liquid two-phase flows through the gap at a certain speed. Due to the sudden height difference, the flow state is disordered, causing the solid-liquid two-phase flow to be unstable and affecting the measurement of pipeline resistance. Therefore, the traditional connection method cannot meet the requirements.
发明内容Contents of the invention
为了克服上述不足，本发明提供一种新型结构的直角弯头钢制管无缝连接机构及方法，本发明的技术方案如下：In order to overcome the above-mentioned shortcomings, the present invention provides a seamless connection mechanism and method for a right-angle elbow steel pipe with a new structure. The technical scheme of the present invention is as follows:
一种直角弯头钢制管无缝连接机构，用于将钢管一、钢管二以及直角弯头的无缝连接，钢管一的下端与直角弯头的上端连接，钢管二的左端与直角弯头的下端连接，所述机构包括法兰一、活动法兰一、O型圈一、连接法兰一、连接螺栓一、法兰二、活动法兰二、O型圈二、连接法兰二、连接螺栓二；A seamless connection mechanism for steel pipes with right-angle elbows, which is used for seamlessly connecting the first steel pipe, the second steel pipe and the right-angle elbow, the lower end of the first steel pipe is connected to the upper end of the right-angle elbow, and the left end of the second steel pipe is connected to the The lower end connection, the mechanism includes flange 1, movable flange 1, O-ring 1, connecting flange 1, connecting bolt 1, flange 2, movable flange 2, O-ring 2, connecting flange 2, connecting bolt two;
所述钢管一的下端端部设置一个台阶一、所述直角弯头的上端端部设置一个台阶二，所述两个台阶高度相同，连接处使得两个台阶处于同一水平面，所述两个台阶与法兰一的内孔间隙配合，使得钢管一和直角弯头的连接端的端部到达法兰一的内孔中，所述法兰一的上端通过焊接方式固定在钢管一上，所述法兰一的下端处于直角弯头的台阶二处，所述法兰一的下端与台阶二存在间隙；所述活动法兰一设置在法兰一的下部，所述活动法兰一靠近法兰一的内孔处设置一个倒角，倒角处放置O型圈一，活动法兰一压紧O型圈一用于起到密封的作用；所述法兰一上部设置一个连接法兰一，所述连接法兰一、法兰一、活动法兰一从上至下通过两个连接螺栓一固定；The lower end of the steel pipe 1 is provided with a step 1, and the upper end of the right-angle elbow is provided with a step 2. The height of the two steps is the same, and the connection makes the two steps in the same horizontal plane. The two steps Cooperate with the inner hole of flange one, so that the end of the connecting end of steel pipe one and the right-angle elbow reaches the inner hole of flange one, and the upper end of flange one is fixed on steel pipe one by welding. The lower end of the first flange is at the second step of the right-angle elbow, and there is a gap between the lower end of the first flange and the second step; the first movable flange is arranged at the lower part of the first flange, and the second movable flange is close to the A chamfer is provided at the inner hole of the chamfer, an O-ring is placed at the chamfer, and the movable flange is pressed against the O-ring to play a sealing role; the upper part of the flange is provided with a connecting flange, so that The connecting flange 1, flange 1, movable flange 1 are fixed by two connecting bolts from top to bottom;
所述钢管二的左端端部设置一个台阶三、所述直角弯头的下端端部设置一个台阶四，所述两个台阶高度相同，连接处使得两个台阶处于同一水平面，所述两个台阶与法兰二的内孔间隙配合，使得钢管二和直角弯头的连接端的端部到达法兰二的内孔中，所述法兰二的右端通过焊接方式固定在钢管二上，所述法兰二的左端处于直角弯头的台阶四处，所述法兰二的左端与台阶四存在间隙；所述活动法兰二设置在法兰二的左部，所述活动法兰二靠近法兰二的内孔处设置一个倒角，倒角处放置O型圈二，活动法兰二压紧O型圈二用于起到密封的作用；所述法兰二右部设置一个连接法兰二，所述连接法兰二、法兰二、活动法兰二从右至左通过两个连接螺栓二固定；The left end of the steel pipe 2 is provided with a step 3, and the lower end of the right-angle elbow is provided with a step 4. The height of the two steps is the same, and the connection makes the two steps at the same level. The two steps Cooperate with the inner hole of the second flange so that the end of the connecting end of the second steel pipe and the right-angle elbow reaches the inner hole of the second flange, and the right end of the second flange is fixed on the second steel pipe by welding. The left end of the second flange is at the fourth step of the right-angle elbow, and there is a gap between the left end of the second flange and the fourth step; the second movable flange is arranged on the left part of the second flange, and the second movable flange is close to the second flange A chamfer is provided at the inner hole of the chamfer, and O-ring 2 is placed at the chamfer, and the movable flange 2 is pressed against the O-ring 2 to play a sealing role; the right part of the flange 2 is provided with a connecting flange 2, The connecting flange 2, flange 2 and movable flange 2 are fixed by two connecting bolts 2 from right to left;
所述连接法兰一的右侧延伸出一个“L”连接端，所述连接法兰二上部延伸出一个直线型连接端，所述连接法兰一与连接法兰二通过连接螺栓三固定。An "L" connecting end extends from the right side of the connecting flange 1, and a linear connecting end extends from the upper part of the connecting flange 2, and the connecting flange 1 and connecting flange 2 are fixed by connecting bolts 3.
一种直角弯头钢制管无缝连接方法，利用上述的机构，其步骤如下：A method for seamlessly connecting right-angled elbow steel pipes, using the above-mentioned mechanism, the steps are as follows:
（1）、首先在钢管一的下端端部加工一个台阶一，在直角弯头的上端端部加工一个台阶二，台阶一和台阶二高度相同，保证连接时两个台阶处于同一水平面；同样，在钢管二的左端端部加工一个台阶三，在直角弯头的下端端部加工一个台阶四，台阶三和台阶四高度相同，保证连接时两个台阶处于同一水平面；(1), first process a step 1 at the lower end of the steel pipe 1, and process a step 2 at the upper end of the right-angle elbow. The height of the step 1 and the step 2 are the same to ensure that the two steps are at the same level when connecting; similarly, A step 3 is processed at the left end of the steel pipe 2, and a step 4 is processed at the lower end of the right-angle elbow. The height of the step 3 and the step 4 are the same to ensure that the two steps are at the same level when connecting;
（2）、在直角弯管的台阶二处套装一个活动法兰一，在活动法兰一的内孔处安装一个O型圈一，在钢管一在靠近台阶一处的管身上套装一个连接法兰一，然后将钢管一的下端和直角弯管的上端分别插入法兰一中；法兰一的上端抵住台阶一，钢管一与法兰一通过台阶一定位，法兰一的下端与台阶二有空隙，法兰一的上端通过焊接方式与钢管一固定；然后通过连接螺栓一从上至下依次将连接法兰一、法兰一、活动法兰一固定；(2) Install a movable flange 1 on the second step of the right-angle elbow, install an O-ring 1 on the inner hole of the movable flange 1, and install a connection method on the pipe near the step of the steel pipe 1 Lan 1, then insert the lower end of steel pipe 1 and the upper end of the right-angle elbow into flange 1 respectively; 2. There is a gap, the upper end of flange 1 is fixed to steel pipe 1 by welding; then the connection flange 1, flange 1, and movable flange 1 are fixed in sequence from top to bottom through connecting bolt 1;
（3）、在直角弯管的台阶四处套装一个活动法兰二，在活动法兰二的内孔处安装一个O型圈二，在钢管二在靠近台阶三处的管身上套装一个连接法兰二，然后将钢管二的左端和直角弯管的下端分别插入法兰二中；法兰二的右端抵住台阶三，钢管二与法兰二通过台阶三定位，法兰二的右端与台阶四有空隙，法兰二的右端通过焊接方式与钢管二固定；然后通过连接螺栓二从右至左依次将连接法兰二、法兰二、活动法兰二固定；(3) Set a movable flange 2 on the four steps of the right-angle elbow, install an O-ring 2 on the inner hole of the movable flange 2, and install a connecting flange on the pipe body near the step 3 of the steel pipe 2 2. Then insert the left end of the steel pipe 2 and the lower end of the right-angle elbow into the flange 2 respectively; the right end of the flange 2 is against the step 3, the steel pipe 2 and the flange 2 are positioned through the step 3, and the right end of the flange 2 is in contact with the step 4 If there is a gap, the right end of flange 2 is fixed to steel pipe 2 by welding; then connect flange 2, flange 2, and movable flange 2 in sequence from right to left through connecting bolt 2;
（4）、最后通过连接螺栓三固定连接法兰一和连接法兰二。(4) Finally, the connection flange 1 and connection flange 2 are fixed by the connection bolt 3.
本发明所达到的有益效果：本机构能很好的清除管道间的间隙，使得连接处的过渡跟整根钢管无异，最大限度的保证了管内的平整度，适合对管路要求较高的场合应用。The beneficial effect achieved by the present invention: the mechanism can well clear the gap between the pipes, so that the transition of the joint is no different from that of the whole steel pipe, and the flatness of the pipe is guaranteed to the greatest extent, which is suitable for the pipes with high requirements. occasion application.
附图说明Description of drawings
图1是本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2是图1中A的局部放大图；Fig. 2 is a partial enlarged view of A in Fig. 1;
图3是图1中B的局部放大图。Fig. 3 is a partially enlarged view of B in Fig. 1 .
具体实施方式detailed description
下面结合附图对本发明作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
如图1、图2、图3所示，一种直角弯头钢制管无缝连接机构，用于将钢管一1、钢管二17以及直角弯头5的无缝连接，钢管一1的下端与直角弯头5的上端连接，钢管二17的左端与直角弯头5的下端连接，所述机构包括法兰一2、活动法兰一3、O型圈一4、连接法兰一11、连接螺栓一13、法兰二8、活动法兰二6、O型圈二7、连接法兰二9、连接螺栓二10；As shown in Figure 1, Figure 2, and Figure 3, a right-angle elbow steel pipe seamless connection mechanism is used to seamlessly connect steel pipe 1, steel pipe 2 17 and right-angle elbow 5, the lower end of steel pipe 1 It is connected with the upper end of the right-angle elbow 5, and the left end of the steel pipe 17 is connected with the lower end of the right-angle elbow 5. The mechanism includes a flange 2, a movable flange 3, an O-ring 4, a connecting flange 11, Connecting bolt 13, flange 2 8, movable flange 2 6, O-ring 2 7, connecting flange 2 9, connecting bolt 2 10;
所述钢管一5的下端端部设置一个台阶一14、所述直角弯头5的上端端部设置一个台阶二15，所述两个台阶高度相同，连接处使得两个台阶处于同一水平面，所述两个台阶与法兰一2的内孔间隙配合，使得钢管一1和直角弯头5的连接端的端部到达法兰一2的内孔中，所述法兰一2的上端通过焊接方式固定在钢管一1上，所述法兰一2的下端处于直角弯头5的台阶二15处，所述法兰一2的下端与台阶二15存在间隙；所述活动法兰一3设置在法兰一2的下部，所述活动法兰一3靠近法兰一2的内孔处设置一个倒角，倒角处放置O型圈一4，活动法兰一3压紧O型圈一4用于起到密封的作用；所述法兰一2上部设置一个连接法兰一11，所述连接法兰一11、法兰一2、活动法兰一3从上至下通过两个连接螺栓一13固定；The lower end of the steel pipe 5 is provided with a step 14, and the upper end of the right-angle elbow 5 is provided with a step 2 15. The height of the two steps is the same, and the connection makes the two steps on the same level. The above-mentioned two steps are matched with the inner hole of the flange-2, so that the end of the connecting end of the steel pipe-1 and the right-angle elbow 5 reaches the inner hole of the flange-2, and the upper end of the flange-2 is welded Fixed on the steel pipe one 1, the lower end of the flange one 2 is at the step two 15 of the right-angle elbow 5, and there is a gap between the lower end of the flange one 2 and the step two 15; the movable flange one 3 is arranged on The lower part of the flange 2, the movable flange 3 is provided with a chamfer close to the inner hole of the flange 2, an O-ring 4 is placed at the chamfer, and the movable flange 3 presses the O-ring 4 Used to play a sealing role; the upper part of the flange-2 is provided with a connecting flange-11, and the connecting flange-11, flange-2, and movable flange-3 pass through two connecting bolts from top to bottom - 13 fixed;
所述钢管二18的左端端部设置一个台阶三16、所述直角弯头5的下端端部设置一个台阶四17，所述两个台阶高度相同，连接处使得两个台阶处于同一水平面，所述两个台阶与法兰二8的内孔间隙配合，使得钢管二18和直角弯头5的连接端的端部到达法兰二8的内孔中，所述法兰二8的右端通过焊接方式固定在钢管二18上，所述法兰二8的左端处于直角弯头5的台阶四17处，所述法兰二8的左端与台阶四17存在间隙；所述活动法兰二6设置在法兰二8的左部，所述活动法兰二6靠近法兰二8的内孔处设置一个倒角，倒角处放置O型圈二7，活动法兰二6压紧O型圈二7用于起到密封的作用；所述法兰二8右部设置一个连接法兰二9，所述连接法兰二9、法兰二8、活动法兰二6从右至左通过两个连接螺栓二10固定；The left end of the steel pipe 2 18 is provided with a step 3 16, and the lower end of the right-angle elbow 5 is provided with a step 4 17. The height of the two steps is the same, and the connection makes the two steps at the same level. The above two steps are matched with the inner hole of the second flange 8, so that the end of the connecting end of the steel pipe 18 and the right angle elbow 5 reaches the inner hole of the second flange 8, and the right end of the second flange 8 is welded Fixed on the steel pipe 2 18, the left end of the flange 2 8 is at the step 4 17 of the right angle elbow 5, there is a gap between the left end of the flange 2 8 and the step 4 17; the movable flange 2 6 is arranged on On the left part of flange 2 8, the movable flange 2 6 is provided with a chamfer close to the inner hole of flange 2 8, and an O-ring 2 7 is placed at the chamfer, and the movable flange 2 6 presses the O-ring 2 7 is used to play the role of sealing; the right part of the flange two 8 is provided with a connecting flange two 9, and the connecting flange two 9, flange two 8, and movable flange two 6 pass through two flanges from right to left Connecting bolt two 10 fixed;
所述连接法兰一11的右侧延伸出一个“L”连接端，所述连接法兰二9上部延伸出一个直线型连接端，所述连接法兰一11与连接法兰二9通过连接螺栓三12固定。An "L" connecting end extends from the right side of the connecting flange one 11, and a linear connecting end extends from the upper part of the connecting flange two 9, and the connecting flange one 11 and the connecting flange two 9 are connected by Bolt three 12 are fixed.
一种直角弯头钢制管无缝连接方法，利用上述的机构，其步骤如下：A method for seamlessly connecting right-angled elbow steel pipes, using the above-mentioned mechanism, the steps are as follows:
（1）、首先在钢管一1的下端端部加工一个台阶一14，在直角弯头5的上端端部加工一个台阶二15，台阶一14和台阶二15高度相同，保证连接时两个台阶处于同一水平面；同样，在钢管二18的左端端部加工一个台阶三16，在直角弯头5的下端端部加工一个台阶四17，台阶三16和台阶四17高度相同，保证连接时两个台阶处于同一水平面；(1), first process a step 14 at the lower end of the steel pipe 1, and process a step 2 15 at the upper end of the right angle elbow 5, the height of the step 14 and the step 2 15 are the same, to ensure that there are two steps when connecting In the same horizontal plane; similarly, a step three 16 is processed at the left end of the steel pipe two 18, and a step four 17 is processed at the lower end of the right-angle elbow 5, and the height of the step three 16 and the step four 17 are the same, ensuring that two The steps are at the same level;
（2）、在直角弯管5的台阶二15处套装一个活动法兰一3，在活动法兰一3的内孔处安装一个O型圈一4，在钢管一1在靠近台阶一14处的管身上套装一个连接法兰一11，然后将钢管一1的下端和直角弯管5的上端分别插入法兰一2中；法兰一2的上端抵住台阶一14，钢管一1与法兰一2通过台阶一14定位，法兰一2的下端与台阶二15有空隙，法兰一2的上端通过焊接方式与钢管一1固定；然后通过连接螺栓一13从上至下依次将连接法兰一11、法兰一2、活动法兰一3固定；(2) Set a movable flange 1 at the step 2 15 of the right-angle elbow 5, install an O-ring 4 at the inner hole of the movable flange 3, and install a steel pipe 1 near the step 14 A connecting flange 11 is set on the body of the pipe, and then the lower end of the steel pipe 1 and the upper end of the right-angle elbow 5 are respectively inserted into the flange 2; the upper end of the flange 2 is against the step 14, and the steel pipe 1 and the method Lan 1 2 is positioned by step 14, the lower end of flange 1 2 has a gap with step 2 15, and the upper end of flange 1 2 is fixed with steel pipe 1 by welding; Flange one 11, flange one 2, movable flange one 3 are fixed;
（3）、在直角弯管5的台阶四17处套装一个活动法兰二6，在活动法兰二6的内孔处安装一个O型圈二7，在钢管二18在靠近台阶三16处的管身上套装一个连接法兰二9，然后将钢管二18的左端和直角弯管5的下端分别插入法兰二8中；法兰二8的右端抵住台阶三16，钢管二18与法兰二8通过台阶三16定位，法兰二8的右端与台阶四17有空隙，法兰二8的右端通过焊接方式与钢管二18固定；然后通过连接螺栓二10从右至左依次将连接法兰二9、法兰二8、活动法兰二6固定；(3) Install a movable flange 2 6 at the step 4 17 of the right-angle elbow 5, install an O-ring 2 7 at the inner hole of the movable flange 2 6, and install the steel pipe 2 18 near the step 3 16 A connecting flange 2 9 is set on the body of the pipe, and then the left end of the steel pipe 18 and the lower end of the right angle elbow 5 are respectively inserted into the flange 8; the right end of the flange 2 8 is against the step 3 16, and the steel pipe 18 and the Lan 2 8 is positioned through step 3 16, there is a gap between the right end of flange 2 8 and step 4 17, and the right end of flange 2 8 is fixed to steel pipe 2 18 by welding; then the connecting bolt 2 10 is connected from right to left Flange two 9, flange two 8, movable flange two 6 are fixed;
（4）、最后通过连接螺栓三12固定连接法兰一11和连接法兰二9。(4) Finally, the connection flange one 11 and the connection flange two 9 are fixed by the connection bolt three 12 .
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变形，这些改进和变形也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.
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